APA-viite (7. p.)

Gairns R. Ruth & Redman S. Stuart. (2010). Natural English. Intermediate: Student's book. New York, Oxford University Press, 2010.

Chicago-viite (17. p.)

Gairns R. Ruth ja Redman S. Stuart. Natural English. Intermediate: Student's Book. New York, Oxford University Press, 2010, 2010.

MLA-viite (9. p.)

Gairns R. Ruth ja Redman S. Stuart. Natural English. Intermediate: Student's Book. New York, Oxford University Press, 2010, 2010.